Add missing file

Modified: branches/xmlbuildsystem/reactos/drivers/dd/serial/serial.xml

--- branches/xmlbuildsystem/reactos/drivers/dd/serial/serial.xml	2005-05-15 23:43:28 UTC (rev 15327)
+++ branches/xmlbuildsystem/reactos/drivers/dd/serial/serial.xml	2005-05-16 00:02:09 UTC (rev 15328)
@@ -13,5 +13,6 @@

 	<file>pnp.c</file>
 	<file>power.c</file>
 	<file>rw.c</file>

+	<file>serial.c</file>

 	<file>serial.rc</file>
 </module>